This will be a great addition, thanks. I would also like to toss in a vote for the 3-rail sweep method Tyglik posted an image of. I find that the more profile shapes I add to my sweep the chances increase that I will end up up with what looks like a "wrinkle" appearing between profiles after the sweep is completed. Also, I generally have to draw the third rail anyway as a guide to create my profiles, so it would save a lot of time to just be able to use it in the sweep.